I'm planning a trip to the US in April with the emphasis on the New England area and a stopover en route to the South. I'm looking for ideas for a stopover of a few days to a maximum of a week departing from possibly Boston on our return to Sydney. I know nothing about Indiana, I've obviously heard of Nashville (which looks lovely) and would appreciate some suggestions. We'll be travelling for about a month all together and it would be nice to experience somewhere different. We were in the South West and California last year and visited the US in 1998, to New York City, Boston, 3 days driving through the New England, Montana (to visit friends), San Francisco, Yosemite, Monterey and Carmel.